import cv2
import numpy as np

height, width, channel = 512, 512, 3
dtype = np.uint8
blank_image = np.zeros((height, width, channel), dtype=dtype)

# 圆心坐标
center = (200, 150)
#
radius = 50
# 圆的填充色
color = (255, 0, 0)
# 绘制圆形
cv2.circle(blank_image, center, radius, color, -1)

cv2.imshow('Circle', blank_image)

cv2.waitKey(0)
cv2.destroyAllWindows()
